Quantitative practice
Simple Interest Questions with Answers
Interest that accrues only on the principal, and the rate, time and principal problems built from it. This page pools every simple interest question on the site (122 of them, from 48 exams, weighted towards Management, Banking, SSC) so you can drill the topic on its own instead of meeting four of them inside a full paper.
4% of the pool is graded hard on this site’s own scale and 27% easy, which is gentler than the average topic in this section.
- Questions
- 122
- Practice set
- 25 in 25 min
- Difficulty
- 33/84/5
- Negative marking
- None
Simple Interest questions with solutions
6 from the 122-question pool, worked in full.
1. Find the simple interest on ₹7,000 at 8% per annum for 4 years.
- A. ₹2,140
- B. ₹2,190
- C. ₹2,290
- D. ₹2,240 ✓
Solution. SI = (P × R × T) / 100 = (7000 × 8 × 4) / 100 = ₹2,240.
2. Find the simple interest on ₹9,000 at 7% per annum for 4 years.
- A. ₹2,420
- B. ₹2,520 ✓
- C. ₹2,620
- D. ₹2,720
Solution. SI = (P × R × T)/100 = (9,000 × 7 × 4)/100 = ₹2,520.
3. Find the simple interest on ₹9,000 at 7% per annum for 5 years.
- A. ₹3,150 ✓
- B. ₹3,000
- C. ₹3,250
- D. ₹3,300
Solution. SI = (P × R × T)/100 = (9,000 × 7 × 5)/100 = ₹3,150.
4. A sum of ₹8,000 earns simple interest of ₹1,920 in 4 years. Find the rate of interest per annum.
- A. 5%
- B. 6% ✓
- C. 7%
- D. 8%
Solution. Rate = (SI × 100) / (P × T) = (1920 × 100) / (8000 × 4) = 6%.
5. What principal will amount to ₹9,300 in 4 years at 6% per annum simple interest?
- A. ₹7,000
- B. ₹7,200
- C. ₹7,500 ✓
- D. ₹7,800
Solution. Amount = P(1 + rt/100), so 9,300 = P(1.24), giving P = 9,300/1.24 = ₹7,500.
6. At what rate of simple interest per annum will a sum become double in 12.5 years?
- A. 6%
- B. 8% ✓
- C. 10%
- D. 12%
Solution. For the sum to double, SI = Principal. Using SI = PRT/100: P = P×R×12.5/100, so R = 100/12.5 = 8%.
Exams that set Simple Interest
10 categories, led by Management, Banking, SSC.
Drawn from ATMA, CA Foundation, CAT, CMA Foundation, CMAT, IBPS Clerk, IBPS PO, IBPS RRB Office Assistant, IBPS RRB Officer Scale I, IBPS SO, IBSAT, IMU-CET, INET, IPMAT Rohtak, JAIN JET, JIPMAT, Kerala MCA, KMAT Karnataka, KSDAT, MAH MBA CET, MAH UG CET, MAT, MICAT, NABARD Grade A, NCHM JEE, NIFT, NMAT, RBI Assistant, RBI Grade B, RPF Constable, RPF Sub-Inspector, RRB Group D, RRB Junior Engineer, RRB NTPC, SBI Clerk, SBI PO, SEBI Grade A, SIDBI Grade A & B, SNAP, SRMJEEE, SSC CGL, SSC CHSL, SSC CPO, SSC GD Constable, SSC MTS, SSC Selection Post, TANCET MBA, UPSC CSE.
Simple Interest: frequently asked questions
How many simple interest questions are there?
122, from the 48 exams here whose syllabus sets the topic. 27% are graded easy and 4% hard, which makes simple interest one of the more tractable topics in this section, against a 18% average.
Which exams ask simple interest questions?
48 of the exams on this site, weighted towards Management (14), Banking (12), SSC (6). Every question in this pool comes from one of their own mock tests, so the list below is the honest answer to whether the topic is worth your time.
Is simple interest hard?
4% of these 122 questions are graded hard and 27% easy, making it one of the more tractable topics in this section, against a 18% average.
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